谁有英文版的寓言故事,
题目
谁有英文版的寓言故事,
答案
A wolf had been badly wounded by dogs.He lay sick and maimed in his lair.He felt very hungry and thirsty.When a sheep passed by,he asked him to fetch some water from the stream."If you bring me the wa...
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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